Fix getters in item roll data

module/data/item/base.mjs

@@ -7,7 +7,12 @@
  * @property {boolean} isInventoryItem- Indicates whether items of this type is a Inventory Item
  */
 
-import { addLinkedItemsDiff, getScrollTextData, updateLinkedItemApps } from '../../helpers/utils.mjs';
+import {
+    addLinkedItemsDiff,
+    getScrollTextData,
+    shallowCopyWithGetters,
+    updateLinkedItemApps
+} from '../../helpers/utils.mjs';
 import { ActionsField } from '../fields/actionField.mjs';
 import FormulaField from '../fields/formulaField.mjs';
 
@@ -159,9 +164,8 @@ export default class BaseDataItem extends foundry.abstract.TypeDataModel {
      * @returns {object}
      */
     getRollData(options = {}) {
-        const actorRollData = this.actor?.getRollData() ?? {};
-        const data = Object.assign(actorRollData, {});
-        data.item = Object.assign(this, {});
+        const data = this.actor?.getRollData() ?? {};
+        data.item = this;
         return data;
     }
 

module/documents/actor.mjs

@@ -1,7 +1,7 @@
 import { emitAsGM, GMUpdateEvent } from '../systemRegistration/socket.mjs';
 import { LevelOptionType } from '../data/levelTier.mjs';
 import DHFeature from '../data/item/feature.mjs';
-import { createScrollText, damageKeyToNumber, getDamageKey } from '../helpers/utils.mjs';
+import { createScrollText, damageKeyToNumber, getDamageKey, shallowCopyWithGetters } from '../helpers/utils.mjs';
 import DhCompanionLevelUp from '../applications/levelup/companionLevelup.mjs';
 import { ResourceUpdateMap } from '../data/action/baseAction.mjs';
 import { abilities } from '../config/actorConfig.mjs';
@@ -595,10 +595,7 @@ export default class DhpActor extends Actor {
 
     /**@inheritdoc */
     getRollData() {
-        const rollData = foundry.utils.deepClone(super.getRollData());
-        /* system gets repeated infinately which causes issues when trying to use the data for document creation */
-        delete rollData.system;
-
+        const rollData = shallowCopyWithGetters(super.getRollData());
         rollData.id = this.id;
         rollData.name = this.name;
         rollData.system = this.system.getRollData();

module/helpers/utils.mjs

@@ -809,3 +809,30 @@ export function sortBy(arr, fn) {
     };
     return arr.sort(cmp);
 }
+
+/**
+ * Returns a shallow copy including getters of the given object.
+ * Generally used for expanding roll data without side effects
+ */
+export function shallowCopyWithGetters(obj) {
+    function getAllPropertyDescriptors(obj) {
+        if (!obj) {
+            return Object.create(null);
+        }
+
+        return {
+            ...getAllPropertyDescriptors(Object.getPrototypeOf(obj)),
+            ...Object.getOwnPropertyDescriptors(obj)
+        };
+    }
+
+    const props = getAllPropertyDescriptors(obj);
+    const result = {};
+    for (const key of Object.keys(props)) {
+        const value = obj[key];
+        if (key !== '__proto__' && typeof value !== 'function') {
+            result[key] = obj[key];
+        }
+    }
+    return result;
+}